A new study suggest one of the most commonly prescribed antibiotics in America may have some scary — as in heart — side effects. But how worried do you really need to be? CBS4 Medical Editor Dr. Dave Hnida reports on the study and the question you should ask before taking Zithromax.
The government has a warning about a popular antibiotic. It says azithromycin, better known as Z-Pak, can cause a potentially deadly heart problem.